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- Incipient plate boundaries 初始板块边界
- Plate boundaries are often rich in earthquakes and volcanic activity. 板块边界往往出现在在地震和火山过程中。
- The action of plumes not being confined to plate boundaries is basic to the theory of plate tectonics. 地幔羽的活动并不局限于板块边界,是板块构造理论的基础。
- Certain parts of the plate boundaries along subduction zones appear to be aseismic. 沿消减带的某些板块边界似乎长期无震。
- The rifts therefore represent divergent plate boundaries where seafloor spreading is taking place. 这样,大洋中脊就成为板块分离边界,海底扩张就发生在这里。
- Massive earthquakes tend to occur along other plate boundaries, too, such as along the Himalayan Mountains. 大规模的地震也倾向于沿着其它板块边缘爆发,例如沿着喜马拉雅山脉。
- Plate tectonics as a unifying theory of the earth mainly is connected with deformation, seismicity and volcanism within plate boundaries. 作为固体地球统一理论的板块构造主要涉及刚性板快边界之间的变形、地震活动和火山作用。
- The plate tectonic theory reveals the seafloor spreading and plate lateral movement, and illustrates magmatism related to plate boundaries. 摘要板块构造学说揭示了海底扩张和板块的水平运动现象,阐明了与板块边界相联系的岩浆活动。
- The convergent and divergent velocities of active plate boundaries in the north hemisphere are obtained with space geodetic data. 利用现代空间大地测量技术测出北半球活动板块边缘会聚、扩张和滑动速度。
- The rift valley is a classic example of a divergent plate boundary. 裂谷是一个典型的例子一个不同的板块边界。
- The movement of the plates strains the rock at and near plate boundaries and produces zones of faults around these boundaries. 板块运动在板块边界或者附近拉张岩石,并且在边界周围产生断层带。
- The site of this destruction is another kind of plate boundary: a subduction zone. 销毁旧岩石圈的地方形成另外一种板块边界:一块潜没的区域。
- Both kinds of plate boundary are associated with fault systems, earthquakes and volcanism, but the kinds of geologic activity observed at the two boundaries are quite different. 两种板块边界均与地层系统、地震以及火山活动有关,但在两种边界处观察到的诸般地质活动却迥然不同。
- They occur in composite intrusions in and near deep fractures at plate boundary. 外生稀土矿床中最重要的是海滨砂矿。
- They marked the boundaries of the football fields. 他们画出了足球场地的边界。
- Pengxian copper deposit and the Masongling Formation acting as host formation are products of island arc volcanism in convergent plate boundary. 证据表明,马松岭组及其所赋存的铜矿床均为会聚性板块边界古火山岛弧的产物。
- He scored 26 runs, all in boundaries. 他得了26分,都是打边线球获得的。
- The boundaries are clearly marked off on the map. 边界的划分在地图上标得很清楚。
- He only put a bit on his plate to make fashion. 他只是拨了一点食物到盘子里做做样子。
- The province boundaries are marked in with a fine mapping pen. 省区界限是用很细的绘图笔加画在地图上的。